Hammer.



Patented Oct. 25, 1910.

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WI Ll HAMMER. APPLICATION FILED MAY 8. 1908 WASHINGTON L. BLAKE, OF FITCHBURG, MASSACHUSETTS.

HAMMER.

Specification of Letters Patent.

Application filed May 8, 1908. Serial No. 431,625.

To all whom it may concern:

Be it known that I, WASHINGTON L. BLAKE, a citizen of the United States, residing at Fitehburg, in the county of llorcester and State of Massachusetts, have invented new and useful Improvements in Hammers, of which the following is a specification.

This invention relates to hammers, and especially to that class of. hammers usually employed by machinists, and the object of the invention is to provide an ordinary hammer with a copper tip for striking finished work without marring it.

Another object of the invention is to provide a hammer head having a threaded socket adapted for the reception of a threaded shank, and a tip constructed of metal and provided with a threaded socket adapted for engagement with the projecting portion of the threaded shank, thus providing means whereby tips of various formations may be readily applied to or detached from the hammer head.

In the accompanying drawings, Figure 1 is a longitudinal sectional view of a hammer head constructed in accordance with the present invention, and showing a removable tip in position thereon. Figs. 2 to 7 inclusive illustrate various forms of tips. Fig. 8 is a side elevation of a key employed for applying or removing the tips from the I threaded shank.

In the accompanying drawings the numeral 1 designates the hammer head, and the numeral 2 the handle for the head. The head 1 is constructed of either cast or forged metal as may be desired, and has one of its faces or ends of a greater length than the opposite end. This reduced end 3 is provided with a central threaded bore 4. The bore 4 extends a suitable distance away from the opening in the hammer head provided for the reception of the handle, and the space between the face of the bore and the handle opening is provided with a suit-- able perforation 5, adapted for the reception of a threaded element 6, by which the head is effectively retained in position upon the handle.

Secured within the threaded socket e is a threaded shank 7. This shank 7 is adapted to extend a suitable distance beyond the face of the hammer head and is adapted for engagement with a threaded bore 8 provided win a metal tip 9. This tip 9 may be of any desired formation and is provided with a transverse opening 10 adapted for engagement with the offset lip of a spanner wrench 11, illustrated in Fig. 8 of the drawings. The face of the tip 9 is adapted for the reception of a suitable washer 12, and this washer is adapted to contact with the face of the hammer 3, so as to protect the metal tip from contact with the base of the hammer, and to relieve the threaded shank 7 from the concussion caused by the operation of the hammer ti Having thus ully described the invention what is claimed as new is:

The combination with a handle having a threaded aperture adjacent one of its ends, a head for the handle, said head having a threaded aperture or bore, the inner wall of the bore being provided with a reduced opening alining with the threaded opening in the handle, a removable screw positioned within the opening and engaging the threaded aperture of the handle to secure the head to the handle, an enlarged threaded element for the threaded bore of the head and projecting a suitable distance therefrom, said enlarged threaded element protecting and preventing accidental removal of the screw, a tip member also provided with a threaded bore adapted to engage the projection of the threaded element, and a cushioning washer between the head and the tip.

In testimony whereof I affix my signature in presence of two witnesses.

WASHINGTON L. BLAKE.

Witnesses S. LE ROY LONGLEY, lVAnNnn ALLEN.

Patented Oct. 25, 1910. 

